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AN ATHLET COMPLETES 1 ROUND OF A CIRCULAR TRACK OF DIAMETER 200M IN 40s .WHAT WILL BE THE DISTANCE COVERED AND THE DISPLACEMENT AT THE END OF 2 min 20 s |
Time=2m and 20 seconds ( converts it into second) s0 time in seconds = 140 seconds now v=w*r = 2*22/7*100 40 seconds = 2 * 22/7 *100 1 second = 2 * 22/7 * 100/40 140 second = 2 * 22/7 * 100/40 * 400 so, it gives = 2200 m so the distance is 2200 m and the displacement is 200 m |